Search for flavor changing neutral currents in decays of top quarks
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Data
2011-07-11
Autores
Abazov, V. M.
Abbott, B.
Acharya, B. S.
Adams, M.
Adams, T.
Alexeev, G. D.
Alkhazov, G.
Alton, A.
Alverson, G.
Alves, G. A.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B.V.
Resumo
We present a search for flavor changing neutral currents in decays of top quarks. The analysis is based on a search for t (t) over bar -> l'vl (l) over bar + jets (l, l' = e. mu) final states using 4.1 fb(-1) of integrated luminosity of p (p) over bar collisions at root s = 1.96 TeV. We extract limits on the branching ratio B(t -> Zq) (q = u, c quarks), assuming anomalous tuZ or tcZ couplings. We do not observe any sign of such anomalous coupling and set a limit of B < 3.2% at 95% C.L. (C) 2011 Elsevier B.V. All rights reserved.
Descrição
Palavras-chave
Tevatron, D0, Top quark, Flavor changing neutral current
Como citar
Physics Letters B. Amsterdam: Elsevier B.V., v. 701, n. 3, p. 313-320, 2011.